1.5 Maternal Physio Flashcards
weight and volume of uterus in nonpregnant
70 g; less than or 10 ml
weight and volume of uterus at term
1100g; 5-20L
Uterine enlargement involves:
stretching and hypertrophy of muscle cells
increase elastic tissue
During the 1st 3 months (12wks), what causes uterine enlargement
estrogen
What causes After 12 weeks, what causes uterine enlargement
mechanical distention
3 layers of muscle cells in uterus
Outer hoodlike layer
Middle layer (densely vascularized and MOST important layer
Internal Layer
softening of isthmus
Hegar’s Sign
painless uterine contraction WITHOUT cervical dilatation
Braxton Hicks Contraction
week when uterus becomes an ABDOMINAL organ
12th week
week when Hegar’s sign is detectable
6th-8th week
week when uterus is at the level of the umbilicus and undergoes dextrorotation
20 weeks
how do you measure fundic height
from upper border of symphysis pubis to fundus
when do you measure fundic ht?
18-32 weeks
weeks when measurement of fundic ht may be used as an estimate for AOG in weeks
20-34 weeks
True or False. In pre-eclampsia, there is refractoriness to vasoconstrictor effects of A II
False
softnening of the cervix
Goodell’s sign
week when Goodell’s sign is detectable
6th-8th week
changes in CERVIX during pregnancy
softening cyanosis increased vascularity edema hypertrophy and hyperplasia of cervical glands (cervical eversion) mucus plug (bloody show)
source of progesterone at 6th-7th week of pregnancy
Corpus luteum of pregnancy
source of progesterone after 7th week of pregnancy
placenta
exaggerated luteinization reaction of normal ovary
Luteoma of pregnancy
benign ovary lesion from exaggerated physiologic follicle stimulation
theca lutein cyst
increased vascularity and violaceous coloration of vagina
Chadwick’s sign
Changes in vaginal wall during pregnancy
increased mucosa lthickness
loosening of connective tissue
hypertrophy of smooth muscle
incresed vol of cervical secretion in vagina
pH during pregnancy
3.5-6
stretch marks
Striae Gravidarum
dark discoloration of face and neck
Chloasma, Melasma Gravidarum
average weight gain if BMI before pregnancy is normal
27.5 lbs or 12.5 kg
changes in water metabolism
increased H2O retention
decreased plasma osmolality
pitting edema
cause of pitting edema
increased venous pressure due to partial occlusion of vena cava bby gravid uterus
increase or decrease during pregnancy
- protein
- insulin
- human placental lactogen
- Na
- K
- Ca
- Mg
increased protein increased leptin increased HPL increased N and K decreased Ca and Mg
